<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000">
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		<view class="goods-info-box">
		  <!-- 商品价格 -->
		  <view class="price">￥{{goods_info.goods_price}}</view>
		  <!-- 信息主体区域 -->
		  <view class="goods-info-body">
		    <!-- 商品名称 -->
		    <view class="goods-name">{{goods_info.goods_name}}</view>
		    <!-- 收藏 -->
		    <view class="favi">
		      <uni-icons type="star" size="18" color="gray"></uni-icons>
		      <text>收藏</text>
		    </view>
		  </view>
		  <!-- 运费 -->
		  <view class="yf">快递：免运费</view>
		</view>
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		<view class="goods_nav">
			<uni-goods-nav :fill="true" :options="options" :button-group="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import { mapState,mapMutations,mapGetters} from 'vuex'
	export default {
		data() {
			return {
				goods_info:{},
				 options: [{
				      icon: 'shop',
				      text: '店铺'
				    }, {
				      icon: 'cart',
				      text: '购物车',
				      info: ''
				    }],
				    // 右侧按钮组的配置对象
				    buttonGroup: [{
				        text: '加入购物车',
				        backgroundColor: '#ff0000',
				        color: '#fff'
				      },
				      {
				        text: '立即购买',
				        backgroundColor: '#ffa200',
				        color: '#fff'
				      }
				    ]
			};
		},
		onLoad(option){
			const goods_id = option.goods_id;
			this.getGoodsDetail(goods_id)
		},
		computed:{
			...mapState('m_cart', ['cart']),
			...mapGetters('m_cart',['total'])
		},
		watch:{
			total:{
				handler(newVal){
					const findResult = this.options.find((x) => x.text === '购物车')
					if(findResult){
						findResult.info = newVal
					}
				},
				immediate:true
			}
		},
		methods:{
			...mapMutations('m_cart',['addToCart']),
			async getGoodsDetail(id){
				const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{ goods_id:id })
				if(res.meta.status !== 200) return uni.$showMsg()
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ')
				
				this.goods_info = res.message
			},
			preview(i){
				uni.previewImage({
					current:i,
					urls:this.goods_info.pics.map(x => x.pics_big)
				})
			},
			onClick(e) {
				console.log(e)
			  if (e.content.text === '购物车') {
			    // 切换到购物车页面
			    uni.switchTab({
			      url: '/pages/cart/cart'
			    })
			  }
			},
			buttonClick(e){
				if(e.content.text == '加入购物车'){
					const goods = {
					        goods_id: this.goods_info.goods_id,       // 商品的Id
					        goods_name: this.goods_info.goods_name,   // 商品的名称
					        goods_price: this.goods_info.goods_price, // 商品的价格
					        goods_count: 1,                           // 商品的数量
					        goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
					        goods_state: true                         // 商品的勾选状态
					   };
					this.addToCart(goods)
					}
			}
		}
	}
</script>

<style lang="scss">
swiper {
  height: 750rpx;

  image {
    width: 100%;
    height: 100%;
  }
}
.goods-info-box {
  padding: 10px;
  padding-right: 0;

  .price {
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }

  .goods-info-body {
    display: flex;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    // 收藏区域
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }

  // 运费
  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}
.goods-detail-container {
  // 给页面外层的容器，添加 50px 的内padding，
  // 防止页面内容被底部的商品导航组件遮盖
  padding-bottom: 50px;
}
.goods_nav {
  // 为商品导航组件添加固定定位
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
</style>
